DIY Kits

The QU is a 10HP phaser and sound mangler inspired by the Doppelganger phaser pedal from the 90’s and the works of Turkish sci-fi writer CM Kosemen The QU module has two outputs (which you can use...

AGRIPPA is the world’s first stereo “ring modulator” named after the German philosopher Heinrich Cornelius Agrippa von Nettesheim (1486 –1535). It goes about ring modulating in a different manner...

From the manufacturer: I’ve been doing no-input mixing with guitar pedals and various devices for almost two decades, while the modular synth is a wonderful instrument in itself it’s lacking a...

Lucid is a dual/2-channel CV-mixer (3 inputs each and an output per channel) with a chaotic CV core. A chaotic “engine” is normalled to input 1 on both channels. Each output (top jacks) has...

DE-9 Box of Angels is a three stage bandpass filter/bandpass-gate with integrated noise source in 12HP. Box of Angels can be used as three serial filters, a bandpass gate/crude VCA, and as a separate...

Health is a 12hp clock generator, “wave shaper” and dedicated (clocked) sound source. 

NÖDSIGNAL is a 6hp true stereo broken tape machine simulator. As such it is capable of doing vibrato, chorus as well as ring mod(ish) sounds with the right modulation. Input on channel one (left) as...

Tangram is a 8HP Dual LFO with a chaotic core! Each LFO has 2 outputs, triangle and square which are 10v ppv. The chaotic internal CV signals (of which there are 2) are normalled to the CV inputs of...

The design of CLOT is based on an original idea by Jan Hall, first published in Electronotes EN 92 page 14-15 then refined and published as a manufactured PCB by Ken Stone as the “Bi-N-Tic” filter...

“Don't get me wrong, he's a nice guy, I like him just fine But he's a mouth breather” -Jesus Lizard  MOUTH is a 2-channel true stereo fixed resonance/bandpass filter/vowel filter and/or anti-wah...

A Feedback centered Dual Reverb. DISTORTED LIGHT is a dual, stereo resonator and reverb using 2 BTDR reverb bricks. It’s a huge mess of feedback honestly. In the heart of the modules is a “resonator”...

A Dual VCO utility powerhouse capable of being an LFO, Waveshaper, Ring Mod, Feedback loop, and more. This module came out of a personal need to combine punishing noise modules but making it being...

GBU-12 is a three channel 8hp chaotic CV generator in Eurorack format. It has two CV outputs (X and Y) per channel as well as a gate out (it fires a gate whenever output X is higher in voltage than...

Beneath the Bush of Ghosts is a 26hp Quad Lo-fi sampler based on the ISD1820 IC chip which is an old answering machine chip. This module is inspired by several other projects based on the ISD1820...

From Clacktronics: Start your modular synth journey with this easy-to-follow and inspiring book. Inside a beautiful handmade binder, you’ll find all the information and PCBs you need to construct...

George is a Boolean logic module which can supply 6 different logic functions from the two inputs – OR, NOR, AND, NAND, XOR & XNOR. The logic functions are all obtained from 4011 NAND chips...

Based on the Isolators on the SP-808. They are simple EQ filters, all manually controlled. The core circuit is based on a section of the PGM Isolator, don’t know where that came from, probably a 70s...

This is a solid VCO using the SSI2131 chip. It is very stable and will track nicely over 10 octaves. It has the stock outputs; saw, triangle and pulse, along with a pan-pulse waveform. Moldy Rapture...

Macrame is a 6 channel mixer with voltage controlled level and panning. It uses two SSI2190 chips to do all the work. You can use the SET pots to operate the level and pan manually, or use CV to get...

Logorrhea is kind of a vocal filter; basically it is the back half of a vocoder crammed into 8HP. There are two inputs, 10 filter channels, a white noise channel and a thru channel, to feed thru the...

This module uses the SSI2140 chip which is based on the SSM2040 VCF, with a few updates. The initial concept was to design a module that could switch between a phaser and a VCF. Looking back at old...

Pseudo is a pseudo-random binary sequence/noise/tone generator based on ideas presented in Electronotes #76. It can be used in 2 ways: 1. Pattern generator supplying 4 different CV signals and 2...